SchemeNamedObjectCollectionTItem(Guid) - свойство

public T this[
	Guid id
] { get; set; }

Public Default Property Item ( 
	id As Guid
) As T
	Get
	Set

public:
property T default[Guid id] {
	T get (Guid id);
	void set (Guid id, T value);
}

member Item : 'T with get, set